88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
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#include "TuningContext.h"
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#include "TuningCanvas.h"
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// http://stackoverflow.com/questions/7276826/c-format-number-with-commas
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class comma_numpunct: public std::numpunct<char> {
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protected:
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virtual char do_thousands_sep() const {
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return ',';
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}
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virtual std::string do_grouping() const {
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return "\03";
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}
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};
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TuningContext::TuningContext(TuningCanvas *canvas, wxGLContext *sharedContext) :
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PrimaryGLContext(canvas, sharedContext) {
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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comma_locale = std::locale(std::locale(), new comma_numpunct());
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freqStr.imbue(comma_locale);
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}
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void TuningContext::DrawBegin() {
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glDisable(GL_TEXTURE_2D);
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}
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void TuningContext::Draw(float r, float g, float b, float a, float level) {
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ONE);
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glColor4f(r, g, b, a);
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glBegin(GL_QUADS);
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glVertex2f(1.0, -1.0 + 2.0 * level);
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glVertex2f(-1.0, -1.0 + 2.0 * level);
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glVertex2f(-1.0, -1.0);
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glVertex2f(1.0, -1.0);
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glEnd();
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glDisable(GL_BLEND);
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}
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void TuningContext::DrawEnd() {
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glFlush();
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CheckGLError();
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}
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void TuningContext::DrawDemodFreqBw(long long freq, unsigned int bw, long long center) {
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GLint vp[4];
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glGetIntegerv( GL_VIEWPORT, vp);
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float viewHeight = (float) vp[3];
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float viewWidth = (float) vp[2];
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PrimaryGLContext::GLFontSize fontSize = GLFONT_SIZE16;
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int fontHeight = 16;
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if (viewWidth < 400) {
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fontSize = GLFONT_SIZE12;
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fontHeight = 12;
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}
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getFont(fontSize).drawString("Freq: ", -0.75, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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freqStr.str("");
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freqStr << std::fixed << freq << "Hz";
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getFont(fontSize).drawString(freqStr.str(), -0.75, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
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getFont(fontSize).drawString("BW: ", -0.10, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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freqStr.str("");
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freqStr << std::fixed << bw << "Hz";
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getFont(fontSize).drawString(freqStr.str(), -0.10, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
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getFont(fontSize).drawString("CTR: ", 0.50, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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freqStr.str("");
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freqStr << std::fixed << center << "Hz";
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getFont(fontSize).drawString(freqStr.str(), 0.50, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
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}
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